Grain-separator.



0. A. BURGESON.

GRAIN SEPARATOR.

} APPLICATION FILED JUNE 16, 1914.

1,178,249. Patented Feb. 29,1916.

4 SHEETSSHEET I.

THE COLUMBIA PLANOGRAPH 510., WASHINGTON, n. c.

O. A. BURGESON.

GRAIN SEPARATOR. V APPLICATION man JUNE 16. 1914.

Patented Feb. 29, 1916.

4 SHEETS-SHEET 2.

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@MguI QQ 1,

THE COLUMBIA PLANOGRAPH co., WASHINGTON, D. C.

0'. A. BURGESON.

v GRAIN SEPARATOR.

APPLICATION FILED JUNE 16, I914.

, 1,173,249. Patented Feb. 29, 1916.

4 SHEETS-SHEET 3.

amuemtz THE COLUMBIA PLMjOaRAPI-i c0, WASHINGTON, D. c.

0. A. BURGESON. e

APPLICATION F ILED JUNE 16, 3M.

GRAIN SEPARATOR.

Patented Feb. 29,1916.

4 SHEETSSHEET 4.

THE COLUMBIA PLANOGRAPII co. wAsrmm'rO-\'A D. c.

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rains rrrrnwr orator.

OTTO A. BURGESON, 0F CANTAUB, SASKATCHEWAN, CANADA, ASSIGNOE T0 BUB-GESON POWERLESS GRAIN CLEANER OOIVIPANY, OF NANSON, NORTH DAKOTA, A CORPORA- TION OF SOUTH DAKOTA.

GRAIN-SEPARATOR.

Specification of Letters Patent.

Patented Feb. 2% 1916.

To all whom it may concern:

Be it known that I, O'r'ro A. BURGESON, subject of the King of Great Britain, residing at Cantaur, in the Province of Saskatchewan and Dominion of Canada, have invented certain new anduseful Improvements in Grain-Separators, of which the following is a specification.

My invention relates to gravity grain separators; and as its primary object contemplates means whereby Cockle, cheat, straw, and like impurities may be successfully removed or separated from wheat and other cereals; screens arranged in zig-Zag relation being utilized as the separating means.

The invention as a further object aims to provide a mill or separator wherein means is provided for cleaning the grain and for delivering the impurities and the cleaned grain. into individual compartments or receptacles therefor.

A still further object of the invention resides in the provision of a novel and peculiar form of mill within which the cleaning devices are arranged, means being provided whereby access may be had to the several screens to provide for a removal of the trash and impurities accumulating thereon, and, if desired, for a removal of the screens themselves.

The above and additional objects are accomplished by such means as are illustrated in their preferred embodiment in the accompanying drawings, described in the following specification and then more particularly pointed out in the claims which are appended hereto and form a part of this application.

In describing my invention in detail reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which Figure 1 is a side elevation of a grain separator constructed in accordance with the present invention; Fig. 2 is an enlarged longitudinal sectional view, partly broken awav; Fig. 3 is a section on the line 3-3 of Fig. 2; Fig. 4 is a section on the line H of Fig. 2; Fig. 5 is a view similar to Fig. 2, the lower portion of the separator being shown; Fig. 6 is an enlarged longitudinal sectional view of a portion of a modified form of separator; Fig. 7 is a section on the line 77 of Fig. 6; Fig. 8 is a section on the line 88 of Fig. 6; Fig. 9 is a side elevation of a still further modified form of separator; and Fig. 10 is a longitudinal sectlonal View of one of the mill sections comprising said modified form.

Before proceeding with the description of the drawings, I desire to call particular atten tion to the fact that while I have evolved my invention with reference to the separating of the impurities from grain, the same may be readily utilized as a cleaning device or separator for various other cereals or like substances capable of being screened.

Referring now to the drawings by numerals, 1 designates the main frame or outside casing of the mill, separator or machine. Extending longitudinally of the frame 1, preferably at opposite sides thereof, 1 provide discharge chutes or passage ways 2 into which the chaff or impurities are directed when separated from the grain or other material acted upon by the screening means to be hereinafter fully described. One of the said chutes or passage ways 2 discharges finally into a hopper 3 formed upon the upper end of a discharge pipe 4., the latter discharging into a receptacle 5 arranged therebeneath to receive and contain the impurities delivered thereto. A branch discharge pipe 6 provided with a flared end 7 open to the other of the discharge chutes 2 is arranged relatively to the discharge pipe 4: as to convey by gravity, the impurities directed into the said chute, the said impurities being finally deposited into the receptacle 5 in a manner apparent upon reference to Fig. 1 of the drawings. Extending at an angle, preferably of 45, to the walls of the casing 1, are a plurality of strips 8, the said strips being arranged in parallel spaced relation to form a rake or screen against which the grain or other material acted upon is directedwhen poured into the machine or mill. Said screen 8 is so arranged relatively to one of the discharge chutes 2 as to convey all matter separated from the grain thereinto, the said screen be ing provided to separate straw and the like from the grain.

A baffle plate 9 is arranged directly beneath the screen 8 to direct the grain against a sieve 10 disposed at a 45 angle to the casing walls in a plane beneath the said plate 9. As the grain is directed on to the sieve 10,

certain of the impurities within the grain will be screened or sifted and permitted to fall by gravity into a compartment 11, the said impurities being finally conveyed by the floor of the compartment 12 through an opening 13 in the wall of the discharge chute 2, into the said chute, the floor or base of the said compartment being disposed at an inclination or at an angle to the screen or sieve 10.

A second screen or sieve 14 is arranged beneath or in a plane below the said screen 10, the said screen 14 being disposed to extend at an angle of 45 relatively to the Walls of the casing and preferably parallel with the floor 12 of the compartment 11 or at right angles to the said screen 10, the grain or material acted upon falling by gravity from the said screen 10 on to the screen 14 where it is again sifted or screened. The impurities passing through screen 14 enter a compartment 15 and, by the inclined floor 16 of the said compartment, are conveyed through an opening 17 formed in the wall of the other of the said discharge chutes 2 into the said last mentioned chute.

A third, fourth, and if desired, any number of screens may be arranged one below the other and in zig-zag relation to provide for successful separation of the impurities from the grain, the filial screen, designated 18 directing the cleaned grain into a chute 19 open to that portion of the casing interior containing the grain. Chute 19 is disposed at an angle to discharge pipe 4, said chute discharging, as is apparent upon reference to Figs. 1 and 5 into a receptacle 20 provided to receive the cleaned, separated or pure grain.

As a means whereby the several sieves or screens may be removably supported in proper place to act upon the grain in the manner above set forth, I provide support rods or beams 21, the said beams extending transversely of the frame, to the sides of which they are attached. Beams 21 also serve as a'means whereby the inclined floors of the several compartments are held in place, the top edge of the respective floors extending beyond or above the top edge of the beams 21 to form with the said top edge of the beams, a seat or rest against which the frames 22 of the screens are fitted. The beams 21 and floors serve as a support for the lower ends of the several screens, while beams and 24 serve as a support for the upper end of the several screens; strips 25 attached to the sides of the frame or casing providing support means for the respective sides of the screen. As is apparent upon reference to the drawings, strips 25 are disposed at an angle of 45 to support the screen upon the same angle.

' Removable sections 26 are formed in one of the discharge chutes 2 to provide for ac cess to the interior of the frame or casing 1, thereby permitting a cleaning of the screen, or, if desired, a removal thereof. Retaining plates 27 secured to the beams 24 not only serve as a means for holding the screens in place, but also as an abutment for the removable sections 26, thus causing the said sections to be so arranged relatively to the chute 2 as to be alined therew ith.

Referring now to the modification shown in Figs. 6, T, and 8, the arrangement of the screen 30 is the same, the floor of the several con'ipartments however being so shaped or formed as indicated'at 31 to delii'er the impurities at one side of the casing 32 and into a chute formed at the side of the said frame or casing, this delivery being made possible by cutting an opening 34 in the casing wall, the floor of each compartment directing the material therein toward the said opening in the manner shown. One of the discharge chutes of the modified form of separator is the same as that described in the preferred form of the device, any suitable means being provided to connnunicate the chute with the chute at the base of the machine. By the construction of a machine as illustrated to advantage in the said Figs. 6 to 8 inclusive, the removable sections 26 of the preferred fori .are dispensed with, and doors 36 hinged as at 37 substituted therefor, the latter when open, permitting access to the interior of the machine and if desired, permitting screens 30 to be removed .or cleaned. structure of the modification is the same as that preferred.

Passing on to the description of the modification shown in Figs. 9 and 10, the'ma chine or separator is made in sections, arranged one upon the other as shown to advantage inFig. 9, each section being provided with a pair of screens 40 as shown, and eachsection being provided with a door 41 hinged as at 42 whereby access to the interior of the machine may be had. The sections,- designated each as an entirety by the numeral 43 are each provided with a discharge chute 44, the chutes of the several sections when alined, providing for a continu-,

o ls or unbroken section in much the same manner as that shown in Fig. 6. In this modification, a side delivery for the impurities is in effect provided.

From. the foregoing, taken in connection withthe accompanying drawings it is apparent that the separating action takes place automatically upon the deposit of grain or other material within the machine, the said grain 'or material falling by gravity, first upon screen 8 where the straw and chaff is separated and directed to the discharge chute 2, the grain falling by gravity upon baffle plate 9 and being directed to the first of a plurality of screens arranged in zig-z'ag In other respects, the

relation one below the other, the said screens acting upon the grain to separate all impurities therefrom, finally discharging the cleaned or pure grain into one receptacle and the impurities into another; and that by providing screens of varying mesh, successful separation of impurities from the material acted upon is insured.

In reduction to practice, I have found that the form of my invention, illustrated in the drawings and referred to in the above description, as the preferred embodiment, is the most efiicient and practical; yet realizing that the conditions concurrent with the adoption of my device will necessarily vary, I desire to emphasize the fact that various minor changes in details of construction, proportion and arrangement of parts may be resorted to, when required, without sacrificing any of the advantages of my inven tion, as defined in the appended claims.

Having thus fully described my invention, What I claim as new and desire to secure by Letters Patent, is

1. Ina grain separator, a casing divided longitudinally to provide two discharge chutes, one at each side of the casing; one of said discharge chutes comprising a plurality of removable chute sections, a plurality of screens, each chute section being movable to provide for access to the screens in pairs,

and support means for the screens conjunctively utilizable as an abutment for the easing sections whereby the latter may be held in alined relation with the chute, substantially as described.

2. In a grain separator, an upright casing, a discharge chute formed on two sides of the casing, a plurality of individually removable screens ar 'anged at an inclination Within said casing and in zig-zag relation, an individual support for each screen, a plurality of individually removable casing sections, each section constituting a part of one of said chutes, the several sections being so arranged that access may be gained to the screen in pairs and t0 the chute of which said section is a part, a plate conjunctively utilizable as an abutment for the several sections and as retaining devices for the remov able screens, a means for directing the sifted grain to a common receptacle, and a means for directing the material separated first to the chute and finally to a common receptacle therefor, substantially as described.

In testimony whereof I aflix my signature in presence of two witnesses.

OTTG A. BURGESON. W'itnesses:

JAMES O. Bree, BESSIE E. l\ IAHONEY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

